Form4insider filings, from the source

Insider · CIK 0001445300

Robert W Dean II

Files at: MPWR. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $191k · 3net −$191k
$10k$10k$100k$100k$1M$1MbuyssalesAug 4Aug 7Aug 11Aug 14Aug 18Aug 21Aug 25

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 24, 2026 JForm 4 →Aug 26, 7:22 pm EDTMONOLITHIC POWER SYSTEMS, INC.MPWR5——7,089—
Aug 24, 2026 SForm 4 →Aug 26, 7:22 pm EDTMONOLITHIC POWER SYSTEMS, INC.MPWR32$1,297.72$41,5277,094−0.45%
Aug 17, 2026 SForm 4 →Aug 19, 8:44 pm EDTMONOLITHIC POWER SYSTEMS, INC.MPWR6$1,413.64$8,4827,126−0.08%
Aug 5, 2026 SForm 4 →Aug 6, 6:20 pm EDTMONOLITHIC POWER SYSTEMS, INC.MPWR105$1,344.27$141,1487,132−1.45%
Jul 25, 2026 AForm 4 →Jul 28, 6:42 pm EDTMONOLITHIC POWER SYSTEMS, INC.MPWR1,359——7,237—

Reported trades — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.